chemistry - 6. rates and reversible reactions paper 2
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11 Terms
Smaller particles → bigger particles
increase temperature. particles move faster with more energy and more particles have at least activation energy. More successful collisions per second.
more → less particles
Increase concentrator or pressure. more particles in the same volume. More successful collisions per second.
non - cut solid → cut solid
cut solids into smaller pieces. Higher surface area to volume ratio. More successful collisions per second.
Progress of reaction
Add a catalyst, it lowers the Ea (not used up). More particles have at least the Ea. More successful collisions per second.
Describe rates over time plan for 3 marker
0-2 mins:
2-4 mins:
4+ mins:
Reversible reaction symbol
—→
←—
Forward and backward rates
The same
Concentrations of chemicals
Won’t change
Has to be in
Closed system
Note 
Flashcards (118)